<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Pinyin
{
	private $_d = array( 
		array("a",-20319), 
		array("ai",-20317), 
		array("an",-20304), 
		array("ang",-20295), 
		array("ao",-20292), 
		array("ba",-20283), 
		array("bai",-20265), 
		array("ban",-20257), 
		array("bang",-20242), 
		array("bao",-20230), 
		array("bei",-20051), 
		array("ben",-20036), 
		array("beng",-20032), 
		array("bi",-20026), 
		array("bian",-20002), 
		array("biao",-19990), 
		array("bie",-19986), 
		array("bin",-19982), 
		array("bing",-19976), 
		array("bo",-19805), 
		array("bu",-19784), 
		array("ca",-19775), 
		array("cai",-19774), 
		array("can",-19763), 
		array("cang",-19756), 
		array("cao",-19751), 
		array("ce",-19746), 
		array("ceng",-19741), 
		array("cha",-19739), 
		array("chai",-19728), 
		array("chan",-19725), 
		array("chang",-19715), 
		array("chao",-19540), 
		array("che",-19531), 
		array("chen",-19525), 
		array("cheng",-19515), 
		array("chi",-19500), 
		array("chong",-19484), 
		array("chou",-19479), 
		array("chu",-19467), 
		array("chuai",-19289), 
		array("chuan",-19288), 
		array("chuang",-19281), 
		array("chui",-19275), 
		array("chun",-19270), 
		array("chuo",-19263), 
		array("ci",-19261), 
		array("cong",-19249), 
		array("cou",-19243), 
		array("cu",-19242), 
		array("cuan",-19238), 
		array("cui",-19235), 
		array("cun",-19227), 
		array("cuo",-19224), 
		array("da",-19218), 
		array("dai",-19212), 
		array("dan",-19038), 
		array("dang",-19023), 
		array("dao",-19018), 
		array("de",-19006), 
		array("deng",-19003), 
		array("di",-18996), 
		array("dian",-18977), 
		array("diao",-18961), 
		array("die",-18952), 
		array("ding",-18783), 
		array("diu",-18774), 
		array("dong",-18773), 
		array("dou",-18763), 
		array("du",-18756), 
		array("duan",-18741), 
		array("dui",-18735), 
		array("dun",-18731), 
		array("duo",-18722), 
		array("e",-18710), 
		array("en",-18697), 
		array("er",-18696), 
		array("fa",-18526), 
		array("fan",-18518), 
		array("fang",-18501), 
		array("fei",-18490), 
		array("fen",-18478), 
		array("feng",-18463), 
		array("fo",-18448), 
		array("fou",-18447), 
		array("fu",-18446), 
		array("ga",-18239), 
		array("gai",-18237), 
		array("gan",-18231), 
		array("gang",-18220), 
		array("gao",-18211), 
		array("ge",-18201), 
		array("gei",-18184), 
		array("gen",-18183), 
		array("geng",-18181), 
		array("gong",-18012), 
		array("gou",-17997), 
		array("gu",-17988), 
		array("gua",-17970), 
		array("guai",-17964), 
		array("guan",-17961), 
		array("guang",-17950), 
		array("gui",-17947), 
		array("gun",-17931), 
		array("guo",-17928), 
		array("ha",-17922), 
		array("hai",-17759), 
		array("han",-17752), 
		array("hang",-17733), 
		array("hao",-17730), 
		array("he",-17721), 
		array("hei",-17703), 
		array("hen",-17701), 
		array("heng",-17697), 
		array("hong",-17692), 
		array("hou",-17683), 
		array("hu",-17676), 
		array("hua",-17496), 
		array("huai",-17487), 
		array("huan",-17482), 
		array("huang",-17468), 
		array("hui",-17454), 
		array("hun",-17433), 
		array("huo",-17427), 
		array("ji",-17417), 
		array("jia",-17202), 
		array("jian",-17185), 
		array("jiang",-16983), 
		array("jiao",-16970), 
		array("jie",-16942), 
		array("jin",-16915), 
		array("jing",-16733), 
		array("jiong",-16708), 
		array("jiu",-16706), 
		array("ju",-16689), 
		array("juan",-16664), 
		array("jue",-16657), 
		array("jun",-16647), 
		array("ka",-16474), 
		array("kai",-16470), 
		array("kan",-16465), 
		array("kang",-16459), 
		array("kao",-16452), 
		array("ke",-16448), 
		array("ken",-16433), 
		array("keng",-16429), 
		array("kong",-16427), 
		array("kou",-16423), 
		array("ku",-16419), 
		array("kua",-16412), 
		array("kuai",-16407), 
		array("kuan",-16403), 
		array("kuang",-16401), 
		array("kui",-16393), 
		array("kun",-16220), 
		array("kuo",-16216), 
		array("la",-16212), 
		array("lai",-16205), 
		array("lan",-16202), 
		array("lang",-16187), 
		array("lao",-16180), 
		array("le",-16171), 
		array("lei",-16169), 
		array("leng",-16158), 
		array("li",-16155), 
		array("lia",-15959), 
		array("lian",-15958), 
		array("liang",-15944), 
		array("liao",-15933), 
		array("lie",-15920), 
		array("lin",-15915), 
		array("ling",-15903), 
		array("liu",-15889), 
		array("long",-15878), 
		array("lou",-15707), 
		array("lu",-15701), 
		array("lv",-15681), 
		array("luan",-15667), 
		array("lue",-15661), 
		array("lun",-15659), 
		array("luo",-15652), 
		array("ma",-15640), 
		array("mai",-15631), 
		array("man",-15625), 
		array("mang",-15454), 
		array("mao",-15448), 
		array("me",-15436), 
		array("mei",-15435), 
		array("men",-15419), 
		array("meng",-15416), 
		array("mi",-15408), 
		array("mian",-15394), 
		array("miao",-15385), 
		array("mie",-15377), 
		array("min",-15375), 
		array("ming",-15369), 
		array("miu",-15363), 
		array("mo",-15362), 
		array("mou",-15183), 
		array("mu",-15180), 
		array("na",-15165), 
		array("nai",-15158), 
		array("nan",-15153), 
		array("nang",-15150), 
		array("nao",-15149), 
		array("ne",-15144), 
		array("nei",-15143), 
		array("nen",-15141), 
		array("neng",-15140), 
		array("ni",-15139), 
		array("nian",-15128), 
		array("niang",-15121), 
		array("niao",-15119), 
		array("nie",-15117), 
		array("nin",-15110), 
		array("ning",-15109), 
		array("niu",-14941), 
		array("nong",-14937), 
		array("nu",-14933), 
		array("nv",-14930), 
		array("nuan",-14929), 
		array("nue",-14928), 
		array("nuo",-14926), 
		array("o",-14922), 
		array("ou",-14921), 
		array("pa",-14914), 
		array("pai",-14908), 
		array("pan",-14902), 
		array("pang",-14894), 
		array("pao",-14889), 
		array("pei",-14882), 
		array("pen",-14873), 
		array("peng",-14871), 
		array("pi",-14857), 
		array("pian",-14678), 
		array("piao",-14674), 
		array("pie",-14670), 
		array("pin",-14668), 
		array("ping",-14663), 
		array("po",-14654), 
		array("pu",-14645), 
		array("qi",-14630), 
		array("qia",-14594), 
		array("qian",-14429), 
		array("qiang",-14407), 
		array("qiao",-14399), 
		array("qie",-14384), 
		array("qin",-14379), 
		array("qing",-14368), 
		array("qiong",-14355), 
		array("qiu",-14353), 
		array("qu",-14345), 
		array("quan",-14170), 
		array("que",-14159), 
		array("qun",-14151), 
		array("ran",-14149), 
		array("rang",-14145), 
		array("rao",-14140), 
		array("re",-14137), 
		array("ren",-14135), 
		array("reng",-14125), 
		array("ri",-14123), 
		array("rong",-14122), 
		array("rou",-14112), 
		array("ru",-14109), 
		array("ruan",-14099), 
		array("rui",-14097), 
		array("run",-14094), 
		array("ruo",-14092), 
		array("sa",-14090), 
		array("sai",-14087), 
		array("san",-14083), 
		array("sang",-13917), 
		array("sao",-13914), 
		array("se",-13910), 
		array("sen",-13907), 
		array("seng",-13906), 
		array("sha",-13905), 
		array("shai",-13896), 
		array("shan",-13894), 
		array("shang",-13878), 
		array("shao",-13870), 
		array("she",-13859), 
		array("shen",-13847), 
		array("sheng",-13831), 
		array("shi",-13658), 
		array("shou",-13611), 
		array("shu",-13601), 
		array("shua",-13406), 
		array("shuai",-13404), 
		array("shuan",-13400), 
		array("shuang",-13398), 
		array("shui",-13395), 
		array("shun",-13391), 
		array("shuo",-13387), 
		array("si",-13383), 
		array("song",-13367), 
		array("sou",-13359), 
		array("su",-13356), 
		array("suan",-13343), 
		array("sui",-13340), 
		array("sun",-13329), 
		array("suo",-13326), 
		array("ta",-13318), 
		array("tai",-13147), 
		array("tan",-13138), 
		array("tang",-13120), 
		array("tao",-13107), 
		array("te",-13096), 
		array("teng",-13095), 
		array("ti",-13091), 
		array("tian",-13076), 
		array("tiao",-13068), 
		array("tie",-13063), 
		array("ting",-13060), 
		array("tong",-12888), 
		array("tou",-12875), 
		array("tu",-12871), 
		array("tuan",-12860), 
		array("tui",-12858), 
		array("tun",-12852), 
		array("tuo",-12849), 
		array("wa",-12838), 
		array("wai",-12831), 
		array("wan",-12829), 
		array("wang",-12812), 
		array("wei",-12802), 
		array("wen",-12607), 
		array("weng",-12597), 
		array("wo",-12594), 
		array("wu",-12585), 
		array("xi",-12556), 
		array("xia",-12359), 
		array("xian",-12346), 
		array("xiang",-12320), 
		array("xiao",-12300), 
		array("xie",-12120), 
		array("xin",-12099), 
		array("xing",-12089), 
		array("xiong",-12074), 
		array("xiu",-12067), 
		array("xu",-12058), 
		array("xuan",-12039), 
		array("xue",-11867), 
		array("xun",-11861), 
		array("ya",-11847), 
		array("yan",-11831), 
		array("yang",-11798), 
		array("yao",-11781), 
		array("ye",-11604), 
		array("yi",-11589), 
		array("yin",-11536), 
		array("ying",-11358), 
		array("yo",-11340), 
		array("yong",-11339), 
		array("you",-11324), 
		array("yu",-11303), 
		array("yuan",-11097), 
		array("yue",-11077), 
		array("yun",-11067), 
		array("za",-11055), 
		array("zai",-11052), 
		array("zan",-11045), 
		array("zang",-11041), 
		array("zao",-11038), 
		array("ze",-11024), 
		array("zei",-11020), 
		array("zen",-11019), 
		array("zeng",-11018), 
		array("zha",-11014), 
		array("zhai",-10838), 
		array("zhan",-10832), 
		array("zhang",-10815), 
		array("zhao",-10800), 
		array("zhe",-10790), 
		array("zhen",-10780), 
		array("zheng",-10764), 
		array("zhi",-10587), 
		array("zhong",-10544), 
		array("zhou",-10533), 
		array("zhu",-10519), 
		array("zhua",-10331), 
		array("zhuai",-10329), 
		array("zhuan",-10328), 
		array("zhuang",-10322), 
		array("zhui",-10315), 
		array("zhun",-10309), 
		array("zhuo",-10307), 
		array("zi",-10296), 
		array("zong",-10281), 
		array("zou",-10274), 
		array("zu",-10270), 
		array("zuan",-10262), 
		array("zui",-10260), 
		array("zun",-10256), 
		array("zuo",-10254) 
	); 
	
	private function _g($num){ 
		if ($num > 0 && $num < 160)
		{ 
			return chr($num); 
		} 
		elseif ($num < -20319 || $num > -10247)
		{ 
			return ""; 
		}
		else
		{ 
			for($i = count($this->_d)-1; $i >= 0; $i--)
			{
				if ($this->_d[$i][1] <= $num)
				break;
			} 
			return $this->_d[$i][0]; 
		} 
	}

	private function _title_trim($str) 
	{ 
		$str = trim($str); 
		$str = strip_tags($str,""); 
		$str = @ereg_replace("\t","",$str); 
		$str = @ereg_replace("\r\n","",$str); 
		$str = @ereg_replace("\r","",$str); 
		$str = @ereg_replace("\n","",$str); 
		$str = @ereg_replace(" ","",$str); 
		return trim($str); 
	}
	
	public function py($str, $type = 0)
	{ 
		$str = self::_title_trim($str);
		$str=iconv("UTF-8", "gb2312",$str);
		$ret=""; 
		for($i=0;$i<strlen($str);$i++)
		{ 
			$p=ord(substr($str,$i,1)); 
			if($p>160)
			{ 
				$q=ord(substr($str,++$i,1)); 
				$p=$p*256+$q-65536; 
			} 
			if($type == 1)
			{
				$ret.=self::_g($p)."_"; 
			}
			elseif($type == 2)
			{
				$ret.=substr(self::_g($p),0,1);
			}
			elseif($type == 3)
			{
				$ret.=substr(self::_g($p),0,1)."_"; 
			}
			else
			{
				$ret.=self::_g($p); 
			}		
		}
		if($type == 0 || $type == 2)
		{
			return $ret; 
		}
		else
		{
			return substr($ret,0,-1); 
		}
		
	} 
}
?>